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Owl Nebula
释义
Owl Nebula
Encyclopedia
理学
行星状星云
释
Owl Nebula
夜枭星云
位于大熊星座的一个比较复杂的行星状星云。星表中的编号为M97和NGC3587。距离地球2030光年(621秒差距),视星等为9.9,年龄约8千年。又称猫头鹰星云。
Astronomy
Owl Nebula
夜枭星云
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peak set
peak shuffling
peak time
peak to average power ratio suppression
peak to background ratio
peak-to-background ratio
peak to valley
peak to valley, PTV
peak to valley ratio
peak-to-valley ratio
peak-to-valley value
peak valley technique
peak [value]
peak value
peak wavelength
peak width
peak width at base
peak width at half height
peak withstand currenttest
peaky
pea leaf miner
pea leafminer
Peale Museum
Peano
Peano algebra
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